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Al-Hosary A, Radwan AM, Ahmed LS, Abdelghaffar SK, Fischer S, Nijhof AM, Clausen PH, Ahmed JS. Isolation and propagation of an Egyptian Theileria annulata infected cell line and evaluation of its use as a vaccine to protect cattle against field challenge. Sci Rep 2024; 14:8565. [PMID: 38609410 PMCID: PMC11014843 DOI: 10.1038/s41598-024-57325-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
Tropical theileriosis is an important protozoan tick-borne disease in cattle. Vaccination using attenuated schizont-infected cell lines is one of the methods used for controlling the disease. This study describes the production of attenuated schizont-infected cell lines from Egypt and an evaluation of its use as a vaccine to protect calves against clinical disease upon field challenge. Two groups of exotic and crossbred male calves were divided into vaccinated and control groups. The vaccinated groups were inoculated with 4 ml (1 × 106 cells/ml) of the attenuated cell line. Three weeks after vaccination, calves of both groups were transported to the New Valley Governorate (Egyptian oasis) where they were kept under field conditions and exposed to the natural Theileria annulata challenge. All animals in the control group showed severe clinical signs and died despite treatment with buparvaquone, which was administered after two days of persistent fever due to a severe drop in packed cell volume (PCV). Animals in the vaccinated group became seropositive without developing severe clinical signs other than transient fever. Post-mortem examinations revealed enlarged and fragile lymph nodes, spleen, and liver with necrosis and hemorrhages. These findings indicate that the Egyptian attenuated cell line was successful in protecting both exotic and crossbred animals against tropical theileriosis under field conditions.
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Affiliation(s)
- Amira Al-Hosary
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
| | - Ahmed M Radwan
- Field Veterinarian, EL-Minia's Veterinary Directorate, EL-Minia, Egypt
| | - Laila S Ahmed
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
| | - Sary Kh Abdelghaffar
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
- Department of Pathology and Clinical Pathology, School of Veterinary Medicine, Badr University in Assiut, Assiut, Egypt
| | - Susanne Fischer
- Institute of Infectology, Friedrich-Loeffler-Institut, Südufer 10, Insel Riems, 17943, Greifswald, Germany
| | - Ard M Nijhof
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany.
- Veterinary Center for Resistance Research, Freie Universität Berlin, 14163, Berlin, Germany.
| | - Peter-Henning Clausen
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany
| | - Jabbar S Ahmed
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany
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Foughali AA, Ziam H, Aiza A, Boulkrout H, Berber A, Bitam I, Gharbi M. Cross-sectional survey of cattle haemopathogens in Constantine, Northeast Algeria. Vet Med Sci 2021; 7:1237-1244. [PMID: 33683831 PMCID: PMC8294368 DOI: 10.1002/vms3.459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 02/08/2021] [Accepted: 02/16/2021] [Indexed: 11/05/2022] Open
Abstract
This aim of the present study was to estimate the prevalence of haemopathogens in cattle in Beni Hamidene locality, district of Constantine (Νortheastern Algeria). Between June and October 2014, 169 bovines from 25 farms were included in this survey, 32 (18.9%) among them were suspected of piroplasmosis and/or anaplasmosis. Infection prevalences were estimated by microscopic examination of Giemsa‐stained blood smears and blood samples from all included cattle (n = 169). Animals were infected by Theileria annulata (65/169; 38.46%), Anaplasma marginale (22/169; 13%) and Babesia bovis (5/169; 3%). Two co‐infection patterns were found: Theileria annulata/Anaplasma marginale (7.69%) and Theileria annulata/Babesia bovis (1.18%). Only one farm had no cattle infected by any of the haemopathogens. There was a signification difference of T. annulata infection prevalence according to age category (p =.04). These results emphasised mainly the presence of bovine tropical theileriosis in northeastern, Beni Hamidene locality, province of Constantine, Algeria.
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Affiliation(s)
- Asma Amina Foughali
- Laboratoire de Biodiversité et Environnement : Interactions et Génomes. Université des Sciences et de la Technologie Houari Boumédiène, Algiers, Algeria.,Institut des Sciences Vétérinaires, Université Saad Dahlab, Ouled Yaich, Blida, Algeria
| | - Hocine Ziam
- Institut des Sciences Vétérinaires, Université Saad Dahlab, Ouled Yaich, Blida, Algeria.,Laboratoire de Biotechnologie, Environnement et Santé, Université Saad Dahlab, Blida, Algeria
| | - Asma Aiza
- Laboratoire des Biotechnologies Liées à la Reproduction Animale (LBRA), Université Blida 1, Blida, Algeria
| | | | - Ali Berber
- Laboratoire des Biotechnologies Liées à la Reproduction Animale (LBRA), Université Blida 1, Blida, Algeria
| | - Idir Bitam
- Laboratoire de Biodiversité et Environnement : Interactions et Génomes. Université des Sciences et de la Technologie Houari Boumédiène, Algiers, Algeria.,École Supérieure en Sciences de l'Aliment et des Industries Agroalimentaires (ESSAIA), El Harrach, Alger, Algeria
| | - Mohamed Gharbi
- Laboratoire de Parasitologie, École Nationale de Médecine Vétérinaire de Sidi Thabet, Univ. Manouba, Sidi Thabet, 2020, Tunisia
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Prabhakaran HS, Ghosh KK, Kumari RR, Kumar P, Kumar M. Evaluation of sporozoite and macroschizont antigen (Spm2) of Theileria annulata for its diagnostic potential. Ticks Tick Borne Dis 2021; 12:101691. [PMID: 33667832 DOI: 10.1016/j.ttbdis.2021.101691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 01/16/2021] [Accepted: 01/31/2021] [Indexed: 10/22/2022]
Abstract
Theileria are tick-borne apicomplexan parasites, which mainly infect ruminants in tropical and subtropical regions of the world. The present study was directed to investigate the serological methods for the diagnosis of theileriosis in crossbred cattle. Blood samples (n = 176) were collected from the regional cattle populations of Bihar state situated at the Gangetic plains of India. Microscopic examination of blood smears from the cattle revealed the presence of tick-borne infectious organisms (Theileria and Anaplasma) in the region. PCR-based detection of Tams1 (Theileria annulata merozoite surface antigen) gene and the sequencing of 18S rRNA amplicon from the blood samples confirmed T. annulata as the primary causative agent of theileriosis in cattle of the Bihar region. Similarly, the amplification of the msp5 gene confirmed Anaplasma marginale infection. For the large-scale epidemiological investigation, sporozoite and macroschizont (spm2) partial gene from T. annulata was cloned in pET-28a (+) vector and overexpressed in E. coli BL21 cells. Overexpressed recombinant-Spm2 (43 kDa) was purified by Ni-NTA affinity chromatography and was used for immunodetection of theileriosis in cattle serum samples. Sequence analysis of the cloned partial spm2 gene in this study showed multiple SNPs (single nucleotide polymorphisms) in T. annulata. Recombinant-Spm2 antigen was explicitly recognised by the immunoglobulins (IgG) of the cattle naturally infected with Theileria. Further, an indirect enzyme-linked immunosorbent assay (ELISA) was developed using partial r-Spm2 antigen that exhibited high sensitivity (100 %) and specificity (90.9 %). Thus, this study suggests that partial r-Spm2 can be used as a diagnostic antigen for seroepidemiological studies of T. annulata infection in crossbred cattle.
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Affiliation(s)
- Harshini Sheeja Prabhakaran
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Karukriti Kaushik Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Rashmi Rekha Kumari
- Department of Veterinary Pharmacology and Toxicology, Bihar Veterinary College, BASU, Patna, 800 014, India
| | - Pankaj Kumar
- Division of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, Patna, 800 014, Bihar, India.
| | - Manish Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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Gharbi M, Darghouth MA, Elati K, Al-Hosary AAT, Ayadi O, Salih DA, El Hussein AM, Mhadhbi M, Khamassi Khbou M, Hassan SM, Obara I, Ahmed LS, Ahmed J. Current status of tropical theileriosis in Northern Africa: A review of recent epidemiological investigations and implications for control. Transbound Emerg Dis 2020; 67 Suppl 1:8-25. [PMID: 32174036 DOI: 10.1111/tbed.13312] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/18/2019] [Accepted: 07/22/2019] [Indexed: 11/29/2022]
Abstract
Tropical theileriosis caused by the apicomplexan hemoparasite Theileria annulata is a tick-borne disease that constraints livestock production in parts of Europe, Asia and Africa. Four Hyalomma tick species transmit T. annulata in at least eight Africa countries (Mauritania, Morocco, Algeria, Tunisia, Egypt, Sudan, South Sudan and Ethiopia). The two dominant T. annulata vector ticks present in Africa, H. scupense and H. anatolicum, underlie two different patterns of transmission, which in turn greatly influence the epidemiology of tropical theileriosis. H. dromedarii and H. lusitanicum are also capable of transmitting T. annulata in North Africa, but their roles are associated with specific production systems and agro-ecological contexts. The emergence of resistance to the most widely used theilericidal compound, buparvaquone, continues to limit the effectiveness of chemotherapy. In addition, acaricide use is increasingly becoming unsustainable. Deployable T. annulata attenuated live vaccines established from local strains in Tunisia, Sudan and Egypt are available, and recent work has indicated that these vaccines can be protective under conditions of natural transmission. However, vaccination programmes may vary over space and time due to differences in the prevalence of disease amongst cattle populations, as well seasonal variation in vector activity. We review recent descriptive and analytical surveys on the epidemiology of T. annulata infection with reference to (a) demographic aspects such as breeds and ages of cattle herds previously exposed to distinct T. annulata infection pressures and (b) seasonal dynamics of tick activity and disease transmission. We then discuss how the wider endemic patterns that we delineate can underpin the development and execution of future vaccination programmes. We also outline options for integrated control measures targeting tick vectors and husbandry practices.
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Affiliation(s)
- Mohamed Gharbi
- Laboratoire de Parasitologie, Institution de la Recherche et de l'Enseignement Supérieur Agricoles and Univ. Manouba, École Nationale de Médecine Vétérinaire de Sidi Thabet, Sidi Thabet, Tunisia
| | - Mohamed Aziz Darghouth
- Laboratoire de Parasitologie, Institution de la Recherche et de l'Enseignement Supérieur Agricoles and Univ. Manouba, École Nationale de Médecine Vétérinaire de Sidi Thabet, Sidi Thabet, Tunisia
| | - Khawla Elati
- Laboratoire de Parasitologie, Institution de la Recherche et de l'Enseignement Supérieur Agricoles and Univ. Manouba, École Nationale de Médecine Vétérinaire de Sidi Thabet, Sidi Thabet, Tunisia
| | - Amira A T Al-Hosary
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Ouarda Ayadi
- Laboratoire de Parasitologie, Institut des Sciences Vétérinaire El Khroub, Université Frères Mentouri, Constantine I, Algeria
| | | | | | - Moez Mhadhbi
- Laboratoire de Parasitologie, Institution de la Recherche et de l'Enseignement Supérieur Agricoles and Univ. Manouba, École Nationale de Médecine Vétérinaire de Sidi Thabet, Sidi Thabet, Tunisia
| | - Médiha Khamassi Khbou
- Laboratoire de Maladies Contagieuses, Zoonoses et Législation Sanitaire, Institution de la Recherche et de l'Enseignement Supérieur Agricoles and Univ Manouba, École Nationale de Médecine Vétérinaire de Sidi Thabet, Sidi Thabet, Tunisia
| | | | - Isaiah Obara
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Laila S Ahmed
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Jabbar Ahmed
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
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Al-Hosary A, Ahmed L, Ahmed J, Nijhof A, Clausen PH. Epidemiological study on tropical theileriosis (Theileria annulata infection) in the Egyptian Oases with special reference to the molecular characterization of Theileria spp. Ticks Tick Borne Dis 2018; 9:1489-1493. [PMID: 30033328 DOI: 10.1016/j.ttbdis.2018.07.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 11/29/2022]
Abstract
Theileria annulata infection is a tick-borne disease known as Egyptian fever since 1947. It is a destructive obstacle for the livestock production in the Egyptian Oases (EL-Wady EL-Geded Province). The present study was conducted on 1068 cattle, ranged from below one year to more than eight years old; belonged to different farms and villages in EL-Wady EL-Geded Province. The infection was confirmed by blood smears, Tams-1 target based polymerase chain reaction (Tams-1 PCR), 18Ss rRNA polymerase chain reaction and semi nested-polymerase chain reaction (nPCR) followed by DNA sequencing and phylogenetic analyses, in addition to tick identification. Molecular techniques confirmed the infection in 63.6% (679/1068) of the examined animals while Giemsa-stained blood smears confirmed it in 36.8% (393/1062). Male and female animals showed molecular confirmed infection rates of 64.5 and 62.7%, respectively. Animals less than one year old were more infected (83.33%, 400/480) followed by animals less than three years (57.31%, 149/260) and animals less than five years (42.45%, 90/212), respectively. On the other hand, animal of five years old or above were less infected and the infection rate in this group was estimated to be 34.48% (40/116). Two tick species were identified during the present study: Hyalomma anatolicum and Rhipicephalus annulatus. Theileria annulata was the only Theileria species found in the Egyptian oases in respect to phylogenetic analysis of the obtained sequences.
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Affiliation(s)
- Amira Al-Hosary
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, 71526, Assiut, Egypt.
| | - Laila Ahmed
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, 71526, Assiut, Egypt
| | - Jabbar Ahmed
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, 14163, Germany
| | - Ard Nijhof
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, 14163, Germany
| | - Peter-Henning Clausen
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, 14163, Germany
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Bilgic HB, Karagenc T, Bakırcı S, Shiels B, Tait A, Kinnaird J, Eren H, Weir W. Identification and Analysis of Immunodominant Antigens for ELISA-Based Detection of Theileria annulata. PLoS One 2016; 11:e0156645. [PMID: 27270235 PMCID: PMC4896419 DOI: 10.1371/journal.pone.0156645] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 05/17/2016] [Indexed: 01/26/2023] Open
Abstract
Tropical or Mediterranean theileriosis, caused by the protozoan parasite Theileria annulata, remains an economically important bovine disease in North Africa, Southern Europe, India, the Middle East and Asia. The disease affects mainly exotic cattle and imposes serious constraints upon livestock production and breed improvement programmes. While microscopic and molecular methods exist which are capable of detecting T. annulata during acute infection, the identification of animals in the carrier state is more challenging. Serological tests, which detect antibodies that react against parasite-encoded antigens, should ideally have the potential to identify carrier animals with very high levels of sensitivity and specificity. However, assays developed to date have suffered from a lack of sensitivity and/or specificity and it is, therefore, necessary to identify novel parasite antigens, which can be developed for this purpose. In the present study, genes encoding predicted antigens were bioinformatically identified in the T. annulata genome. These proteins, together with a panel of previously described antigens, were assessed by western blot analysis for immunoreactivity, and this revealed that four novel candidates and five previously described antigens were recognised by immune bovine serum. Using a combination of immunoprecipitation and mass spectrophotometric analysis, an immunodominant protein (encoded by TA15705) was identified as Ta9, a previously defined T cell antigen. Western blotting revealed another of the five proteins in the Ta9 family, TA15710, also to be an immunodominant protein. However, validation by Enzyme-Linked Immunosorbent Assay indicated that due to either allelic polymorphism or differential immune responses of individual hosts, none of the novel candidates can be considered ideal for routine detection of T. annulata-infected/carrier animals.
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Affiliation(s)
- Huseyin Bilgin Bilgic
- Faculty of Veterinary Medicine, Department of Parasitology, Adnan Menderes University, Isıklı Mevki, 09016, Aydın, Turkey
- * E-mail: ;
| | - Tulin Karagenc
- Faculty of Veterinary Medicine, Department of Parasitology, Adnan Menderes University, Isıklı Mevki, 09016, Aydın, Turkey
| | - Serkan Bakırcı
- Faculty of Veterinary Medicine, Department of Parasitology, Adnan Menderes University, Isıklı Mevki, 09016, Aydın, Turkey
| | - Brian Shiels
- Institute of Biodiversity Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, G61 1QH, United Kingdom
| | - Andrew Tait
- Institute of Biodiversity Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, G61 1QH, United Kingdom
| | - Jane Kinnaird
- Institute of Biodiversity Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, G61 1QH, United Kingdom
| | - Hasan Eren
- Faculty of Veterinary Medicine, Department of Parasitology, Adnan Menderes University, Isıklı Mevki, 09016, Aydın, Turkey
| | - William Weir
- Institute of Biodiversity Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, G61 1QH, United Kingdom
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